Think of Google as a real person
Site visitors are unlikely to read whole pages of text unless they know that the content pertains to exactly what they are looking for. Use clear, descriptive, and keyword-rich text for page titles.
Use keywords wisely
Include primary keywords in the page title (H1) and keyword-rich phrases in the copy at least twice. Use secondary keywords in page headlines and content where appropriate. Try not to think of keywords as things you have to force into your content. They should be a natural expression of what you are trying to convey, and what your visitors will naturally be searching for.
The next most important item is the first paragraph
After the page title, the introductory paragraph in an HTML <p> tag provides further context to Google about what the page is about. Use this paragraph to summarize the contents of the page with relevant and useful keywords.
Use alt text for images
Search engine spiders and people using screen readers cannot see what is being shown in images. Based on the World Wide Web Consortium (W3C) standards, images are required to have alternative text, or “alt text”. However, recent industry-wide recommendations advise that “alt text” is only necessary for images that contain text that isn’t otherwise included in the page and/or is imperative to understanding the content. For example, a flyer that contains event information within the image would benefit from “alt text” containing the same event details. Or if there is an image that is being used to replace large sections of text within a story or explanation. If there is no text within an image or the image is not imperative to understanding the content, there is a chance you could inadvertently make your site less accessible to people with a visual impairment by adding “alt text”. If the surrounding text does a sufficient job conveying the information that the image contains or if the image is purely atmospheric in nature, alt text isn’t necessary. Additionally, ensure that the alt text attribute is not redundant when read within the context of surrounding copy.
Use naming conventions for image and document files
Images are a very rich form of content. Because of this, naming conventions for image files themselves, along with the alt attribute text, should be well thought-out to lend clarity and context. Consistency is key—a standard file naming convention across all images and documents will ensure that individual files on a website full of hundreds or even thousands are easily located.
Bad examples: imaGE_7890.jpg, aakk7654.jpg, stockICON399.png
Good examples: john-doe-profile.jpg, campus-ministry.jpg, college-logo.png.